<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>

<body>
  <input type="text" v-model="a">
  <button>点击</button>
  <script>
    // const btn = document.querySelector('button')
    // btn.addEventListener('click', () => {
    //   alert('你造啊')
    // })
    // const data = new Date()
    // console.log(data);








  </script>
</body>

</html>